var jxewmLoginLink=document.querySelector(".jx-ewmLoginLink")
var jxsj=document.querySelector(".jx-sj")
var jxpc=document.querySelector(".jx-pc")
// var code=""
// 点击图片切换登录方式
var click=0
jxewmLoginLink.onclick=function(){
    click++
    if(click%2){
        jxsj.style.display="block"
        jxpc.style.display="none"
        jxewmLoginLink.style.backgroundPosition="-78px -230px"
    }else{
        jxsj.style.display="none"
        jxpc.style.display="block"
        jxewmLoginLink.style.backgroundPosition="2px -230px"
    }
}

//验证码
$(function(){
    var show_num = [];
    draw(show_num);
    $("#canvas").on('click',function(){
       draw(show_num);
    })
    //登录表单
    $(".jx-login").on("submit",function(){
    // 获取cookies里的数据
    var ouserlist=JSON.parse(Cookies.get("users")||"[]")
    // 获取输入的数据

    var Ouser={
       username: $(this).find("input[name=username]").val().trim(),
       pwd:$(this).find("input[name=pwd]").val().trim(),
    }

   
    var flag=false
    for(i=0;i<ouserlist.length;i++){
        if(ouserlist[i].name==Ouser.username && ouserlist[i].pwd==Ouser.pwd){
            flag=true
            break
        }
    }
    if(flag){
    var res=$(this).find("input[name=code]").val().trim();
    if(!(res==show_num.join(""))){
        layer.msg("验证码输入不正确")
        return false
    }
        layer.alert("登录成功",{icon:1,title:"温馨提示"},function(index){
            layer.close(index);
            console.log(Ouser);
            sessionStorage.setItem("currentname",JSON.stringify(Ouser))
            // location="index.html"

        })
        return false
    }
    layer.alert("用户名或密码不正确",{icon:2,title:"温馨提示"})
    return false
})












    // $(".btn").on('click',function(){
    //     var val = $(".input-val").val().z();
    //     var num = show_num.join("");
    //     if(val==''){
    //         alert('请输入验证码！');
    //     }else if(val == num){
    //         alert('提交成功！');
    //         $(".input-val").val('');
    //         draw(show_num);

    //     }else{
    //         alert('验证码错误！请重新输入！');
    //         $(".input-val").val('');
    //         draw(show_num);
    //     }
    // })
})

function draw(show_num) {
    var canvas_width=$('#canvas').width();
    var canvas_height=$('#canvas').height();
    var canvas = document.getElementById("canvas");//获取到canvas的对象，演员
    var context = canvas.getContext("2d");//获取到canvas画图的环境，演员表演的舞台
    canvas.width = canvas_width;
    canvas.height = canvas_height;
    var sCode = "A,B,C,E,F,G,H,J,K,L,M,N,P,Q,R,S,T,W,X,Y,Z,1,2,3,4,5,6,7,8,9,0";
    var aCode = sCode.split(",");
    var aLength = aCode.length;//获取到数组的长度
    
    for (var i = 0; i <= 3; i++) {
        var j = Math.floor(Math.random() * aLength);//获取到随机的索引值
        var deg = Math.random() * 30 * Math.PI / 180;//产生0~30之间的随机弧度
        var txt = aCode[j];//得到随机的一个内容
        show_num[i] = txt.toLowerCase();
        var x = 10 + i * 20;//文字在canvas上的x坐标
        var y = 20 + Math.random() * 8;//文字在canvas上的y坐标
        context.font = "bold 23px 微软雅黑";

        context.translate(x, y);
        context.rotate(deg);

        context.fillStyle = randomColor();
        context.fillText(txt, 0, 0);

        context.rotate(-deg);
        context.translate(-x, -y);
    }
    for (var i = 0; i <= 5; i++) { //验证码上显示线条
        context.strokeStyle = randomColor();
        context.beginPath();
        context.moveTo(Math.random() * canvas_width, Math.random() * canvas_height);
        context.lineTo(Math.random() * canvas_width, Math.random() * canvas_height);
        context.stroke();
    }
    for (var i = 0; i <= 30; i++) { //验证码上显示小点
        context.strokeStyle = randomColor();
        context.beginPath();
        var x = Math.random() * canvas_width;
        var y = Math.random() * canvas_height;
        context.moveTo(x, y);
        context.lineTo(x + 1, y + 1);
        context.stroke();
    }
    return show_num.join("");
}

function randomColor() {//得到随机的颜色值
    var r = Math.floor(Math.random() * 256);
    var g = Math.floor(Math.random() * 256);
    var b = Math.floor(Math.random() * 256);
    return "rgb(" + r + "," + g + "," + b + ")";
}

